Question

The driver of a truck driving at the speed of 30m/s on a straight road sees a child crossing the road at a distance of 23m. He applies the break and stops the truck in 2s. Find whether the truck hit the child or not. pliz take your time and solved it thank you. ​

Answer 1

u=30m/s

v=0

t=2s

a=(v-u)/t

=0-30/2

=-15m/s^2

s=ut+1/2at^2

=30*2+1/2*-15*4

=60-30

=30m

therefore, the truck will hit the child

Hope it helps........